Citrine is probably most famous for its warm hue which is very hard to come by in other quartz gems ranging from light yellow to deep amber.
Color:
Today there are citrine and citrine quartz in all shades of yellow from lemon yellow to a very deep amber-like color. This color is a result of Iron ions replacing silicon or being included within the Quartz crystal structure.
Clarity:
Citrine is usually translucent to transparent with very rare or no imperfections; thus, it is ideal for use in jewelry. It is clear and this enables it to reflect light as it is supposed to do.
Cut:
The citrine comes in many different shapes such as round; oval, pear, and emerald shape. It is cut to achieve a splendid bright and well-handled depth of coloration.
Luster:
Citrine is clear, and it is birefringent, and it is characterized by having a vitreous luster when fashioned; that is, it has a shiny glass-like look.
The color range of topaz is well known as being rich and many-colored.
Color:
Topaz comes in a number of colors— yellow, blue, pink, green, and even colorless. The most frequently encountered sort of Topaz is a yellow gold specialty; however, blue Topaz is extremely wanted, as it came to be a brilliant blue through treatment.
Clarity:
Topaz is usually transparent and highly clear, so suitable for cutting and faceting. Its clarity lets it reflect light well and give a nice sparkling effect.
Cut:
Usually cut in the shapes of oval, pear, or cushion, topaz can also be cut into unique and custom cuts to maximize its brilliance.
Luster:
Panning topaz has a vitreous luster--it looks glassy when the rock is polished.